EP0187657A2 - Toilet tank gasket - Google Patents
Toilet tank gasket Download PDFInfo
- Publication number
- EP0187657A2 EP0187657A2 EP86100129A EP86100129A EP0187657A2 EP 0187657 A2 EP0187657 A2 EP 0187657A2 EP 86100129 A EP86100129 A EP 86100129A EP 86100129 A EP86100129 A EP 86100129A EP 0187657 A2 EP0187657 A2 EP 0187657A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gasket
- tank
- washer
- wall
- extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/24—Low-level flushing systems
- E03D1/26—Bowl with flushing cistern mounted on the rearwardly extending end of the bowl
Definitions
- This invention relates to a one piece toilet tank gasket for use under the tank bottom wall. It also functions to provide washer surfaces inside the tank and cushionary bumpers between the tank bottom and bowl extension.
- the tank bottom wall In assembling a toilet tank to a toilet bowl in a "two piece" type toilet, the tank bottom wall usually rests on a rearward extension from the bowl. It is then necessary to employ several fastening and sealing components to connect the outlet of the tank to the inlet of the toilet extension, and also to secure the toilet tank to the toilet bowl. Usually, several bolt holes are formed in the tank bottom wall and bowl extension upper wall. Bolts then extend through these holes. To prevent leakage, a washer is then required in the tank (under the bolt head). Also, a gasket is required under the tank bottom wall to seal between the tank bottom wall and the extension. In addition, cushionary bumpers are usually inserted around each bolt (between the tank and bowl extension).
- the object of the present invention is to provide an improved gasket for sealing engagement between a bottom surface of a toilet tank and an upper surface of a toilet bowl extension.
- the present invention provides a one-piece gasket for sealing engagement between a bottom surface of a toilet tank that has a tank outlet opening therethrough, and an upper surface of a toilet bowl extension that has an inlet opening therethrough, said gasket being suitable for use when the tank and bowl extension are secured together by a fastener extending through fastener holes in the tank bottom and extension top, comprising: a gasket wall having an opening therethrough that is alignable with the tank outlet and extension inlet, said gasket wall having a sealing portion around said gasket opening that is suitable to be sandwiched by the tank bottom and bowl extension top; a connector attached to said gasket wall and extending upward therefrom, having an axial fastener through bore and also having an enlarged washer head adjacent its upper end, said washer head having a sloped top portion and being spaced from said gasket wall, said washer head constructed and arranged to be able to be compression fitted through a tank bottom fastener hole; whereby said axial- through bore may be aligned with a tank fastener hole when the gas
- the washer head is of a frusto-conical configuration and the washer head, connector and gasket are all integrally formed.
- sealing portion may comprise a depending lower ring suitable to surrounding the gasket wall opening and an upper washer ledge.
- the gasket 10 is shown positioned between a standard toilet tank 11 and a standard toilet bowl extension 12.
- the toilet tank 11 will have the usual fastener openings 13 for the passage of the bolts 14 therethrough.
- a central opening 15 is also provided through the bottom wall 16 for the reception of a lower portion of the flush valve 18.
- the usual inlet pipe 41 provides a source of water to the flush valve 18.
- the one piece toilet tank gasket 10 includes a substantially flat gasket wall portion 19 in which is formed an opening 20 for orientation with the opening 15 in the toilet tank 11.
- the wall 19 has opposing sides 21 and 22 with a central depending sealing ring 23 extending from the lower side 22 and including an annular lip member 33 surrounding an annular washer ledge 34. This is bets seen in conjunction with Figures 2, 3 and 4.
- a separate and optional friction washer 24 can be accommodated within the lip member 33 of ring 23, and will be held therein by the flange 26 of the valve nut 25.
- the usual opening 27 is provided in the toilet bowl extension 12 into which will be positioned the lower portion 17 of the flush valve 18.
- the usual fastener openings 28 are also provided in the flange section 39 of the toilet bowl extension 12 for the reception of the bolts 14 to which will be attached the nuts 29.
- each mushroom- like connector member 30 which extend upwardly from the wall 19. Each will have a frusto-conical washer head end portion 31 at one end with the small diameter portion disposed at the upper end. There is also for each a spacing bumper element 32 at the lower end.
- the connectors also have axial through bores 32A.
- the wall 19 as it extends from the lip member 33 provides three flat walled flange portions 35, 36 and 37.
- the connectors 30 are positioned at the apexes of these portions.
- the flange portions 35, 36 and 37 provide an overall geometric configuration in the form of an isosceles triangle.
- the gasket 10 will be orientated with respect to the toilet tank 11 in a manner shown in Figure 1. This will be with the openings 32A orientated with the openings 13 of the toilet tank 11 member and 28 of the bowl extension, and the opening 20 of the gasket 10 aligned with the openings 15 of the toilet tank and 27 of the bowl extension.
- the frusto-conical member portions 31 of the washer heads will be force fitted through the openings 13 until they will snap in place (they are thus expansion fitted therein by camming therethrough). They then are inside the bottom tank wall 16 as indicated in Figure 2. But in this position the gasket will be held in place under the tank in proper automatic alignment with the threaded portion 17.
- the next step in assembly is the placement of the friction washer 24 against the inner washer ledge 34 and screwing the valve nut 25 onto the threaded portion 17 so as to sandwich the friction washer 24 as well as the washer ledge 34 against the outside of the bottom wall 16 of the toilet tank.
- the next assembly step is the attachment to the toilet bowl extension 12. This will be effected by locating the toilet tank 11 so that the openings 13 are orientated with the openings 28 of the toilet bowl extension 12 as well as with the connectors 30.
- the bolts 14 will be placed therethrough in a manner indicated in Figure 2, and the nuts 29 attached so that they will contact the under surface of the flange 39 of the toilet bowl extension.
- the flange 39 of the toilet bowl 12 has a curved surface 38 for better contact with the ring lip 33 of the gasket member 10. Also as best seen in Figure 2, as the nuts 29 are fastened onto the bolts 14 the heads 40 of the bolts will compress the frusto-conical portions 31 of the sealing members 30 so that they assume a more perfect mushroom-type configuration. Further, it will be noted that the spacing members 32 will provide the proper spacing and cushioning of the flange 39 of the toilet bowl extension 12 from the bottom wall 16 of the toilet tank 11.
- gasket member 10 of this invention is its ease of assembly. Separate washer parts are eliminated and proper alignment of all parts is quickly achieved. Further, since only a single large gasket element is used, loss of small washers does not occur nor does failure to include washers during assembly occur. Also, less plumbing skill is required to use this gasket, and a handyman at home is therefore more likely not to need to hire a skilled plumber when installing a toilet.
- Rubber is the preferred material for the gasket, but other materials may also suffice if they have appropriate sealing and compression characteristics.
- three connectors have been illus- strated for use with the gasket member, any number of such connectors could be utilized, depending upon the number of threaded fastening elements required.
- the washer ends of the connectors have been illustrated as being frusto-conical in configuration. Many other enlargements forming the washer heads (e.g., spheres) could as effectively be utilized to provide the expansion fit.
- a integral unit made of a single material is shown, separately made parts could be assembled into one piece unit, yet follow the present design.
Abstract
Description
- This invention relates to a one piece toilet tank gasket for use under the tank bottom wall. It also functions to provide washer surfaces inside the tank and cushionary bumpers between the tank bottom and bowl extension.
- In assembling a toilet tank to a toilet bowl in a "two piece" type toilet, the tank bottom wall usually rests on a rearward extension from the bowl. It is then necessary to employ several fastening and sealing components to connect the outlet of the tank to the inlet of the toilet extension, and also to secure the toilet tank to the toilet bowl. Usually, several bolt holes are formed in the tank bottom wall and bowl extension upper wall. Bolts then extend through these holes. To prevent leakage, a washer is then required in the tank (under the bolt head). Also, a gasket is required under the tank bottom wall to seal between the tank bottom wall and the extension. In addition, cushionary bumpers are usually inserted around each bolt (between the tank and bowl extension).
- This results in the use of numerous component parts which can be easily misplaced or discarded, and a time consuming and somewhat complex assembly. While the bumpers have on occasion been formed integrally with the gasket, these parts were all for placement outside of the tank, and separate washers still had to be used even with the improved construction.
- The object of the present invention is to provide an improved gasket for sealing engagement between a bottom surface of a toilet tank and an upper surface of a toilet bowl extension.
- The present invention provides a one-piece gasket for sealing engagement between a bottom surface of a toilet tank that has a tank outlet opening therethrough, and an upper surface of a toilet bowl extension that has an inlet opening therethrough, said gasket being suitable for use when the tank and bowl extension are secured together by a fastener extending through fastener holes in the tank bottom and extension top, comprising: a gasket wall having an opening therethrough that is alignable with the tank outlet and extension inlet, said gasket wall having a sealing portion around said gasket opening that is suitable to be sandwiched by the tank bottom and bowl extension top; a connector attached to said gasket wall and extending upward therefrom, having an axial fastener through bore and also having an enlarged washer head adjacent its upper end, said washer head having a sloped top portion and being spaced from said gasket wall, said washer head constructed and arranged to be able to be compression fitted through a tank bottom fastener hole; whereby said axial- through bore may be aligned with a tank fastener hole when the gasket wall opening has been aligned as aforesaid, and the washer head may be positioned at the side of the fastener hole opposite said gasket wall to form a washer in the tank when the gasket wall is still outside the tank and wherein a thickened resilient bumper section is formed integrally with the gasket wall so as to be suitable to surround the fastener hole under the tank, so as to provide a cushion between the tank. and the extension.
- Preferably, the washer head is of a frusto-conical configuration and the washer head, connector and gasket are all integrally formed.
- In addition, the sealing portion may comprise a depending lower ring suitable to surrounding the gasket wall opening and an upper washer ledge.
- In the drawings:
- Figure 1 is an exploded assembly view, with a part of a tank broken away, illustrating the gasket of this invention during assembly between a toilet tank and a toilet bowl.
- Figure 2 is an enlarged partial view in vertical section showing the toilet tank gasket assembled between the toilet tank and the toilet bowl.
- Figure 3 is another enlarged partial sectional view of just the toilet tank gasket of this invention.
- Figure 4 is a bottom plan view of the gasket illustrated in the previous figures.
- Proceeding to a detailed description of the toilet tank gasket of this invention (generally 10), and particularly a description of Figure 1, the
gasket 10 is shown positioned between a standard toilet tank 11 and a standardtoilet bowl extension 12. The toilet tank 11 will have theusual fastener openings 13 for the passage of thebolts 14 therethrough. Acentral opening 15 is also provided through thebottom wall 16 for the reception of a lower portion of theflush valve 18. - The
usual inlet pipe 41 provides a source of water to theflush valve 18. - The one piece
toilet tank gasket 10 includes a substantially flatgasket wall portion 19 in which is formed anopening 20 for orientation with the opening 15 in the toilet tank 11. Thewall 19 has opposingsides ring 23 extending from thelower side 22 and including anannular lip member 33 surrounding anannular washer ledge 34. This is bets seen in conjunction with Figures 2, 3 and 4. - A separate and
optional friction washer 24 can be accommodated within thelip member 33 ofring 23, and will be held therein by theflange 26 of thevalve nut 25. Theusual opening 27 is provided in thetoilet bowl extension 12 into which will be positioned thelower portion 17 of theflush valve 18. Theusual fastener openings 28 are also provided in theflange section 39 of thetoilet bowl extension 12 for the reception of thebolts 14 to which will be attached thenuts 29. - Referring specifically to the
toilet tank gasket 10, it will be seen that there are three mushroom-like connector members 30 which extend upwardly from thewall 19. Each will have a frusto-conical washerhead end portion 31 at one end with the small diameter portion disposed at the upper end. There is also for each aspacing bumper element 32 at the lower end. The connectors also have axial throughbores 32A. - Referring specifically to Figure 4, it will be noted that the
wall 19 as it extends from thelip member 33 provides three flat walledflange portions connectors 30 are positioned at the apexes of these portions. It will be particularly noted that theflange portions - A better understanding of the advantages of the
toilet tank gasket 10 of this invention will be had be a description of its assembly. Referring to Figures 1 and 2 specifically, thegasket 10 will be orientated with respect to the toilet tank 11 in a manner shown in Figure 1. This will be with theopenings 32A orientated with theopenings 13 of the toilet tank 11 member and 28 of the bowl extension, and the opening 20 of thegasket 10 aligned with theopenings 15 of the toilet tank and 27 of the bowl extension. - The frusto-
conical member portions 31 of the washer heads will be force fitted through theopenings 13 until they will snap in place (they are thus expansion fitted therein by camming therethrough). They then are inside thebottom tank wall 16 as indicated in Figure 2. But in this position the gasket will be held in place under the tank in proper automatic alignment with the threadedportion 17. - The next step in assembly is the placement of the friction washer 24 against the
inner washer ledge 34 and screwing thevalve nut 25 onto the threadedportion 17 so as to sandwich the friction washer 24 as well as the washer ledge 34 against the outside of thebottom wall 16 of the toilet tank. With thegasket member 10 positioned with respect to the toilet tank 11 and theflush valve 18 also secured thereto, the next assembly step is the attachment to thetoilet bowl extension 12. This will be effected by locating the toilet tank 11 so that theopenings 13 are orientated with theopenings 28 of thetoilet bowl extension 12 as well as with theconnectors 30. When this is effected, thebolts 14 will be placed therethrough in a manner indicated in Figure 2, and thenuts 29 attached so that they will contact the under surface of theflange 39 of the toilet bowl extension. - It will be specifically noted in conjunction with Figure 2 that the
flange 39 of thetoilet bowl 12 has acurved surface 38 for better contact with thering lip 33 of thegasket member 10. Also as best seen in Figure 2, as thenuts 29 are fastened onto thebolts 14 theheads 40 of the bolts will compress the frusto-conical portions 31 of the sealingmembers 30 so that they assume a more perfect mushroom-type configuration. Further, it will be noted that thespacing members 32 will provide the proper spacing and cushioning of theflange 39 of thetoilet bowl extension 12 from thebottom wall 16 of the toilet tank 11. - It will thus be seen that an important feature of the
gasket member 10 of this invention is its ease of assembly. Separate washer parts are eliminated and proper alignment of all parts is quickly achieved. Further, since only a single large gasket element is used, loss of small washers does not occur nor does failure to include washers during assembly occur. Also, less plumbing skill is required to use this gasket, and a handyman at home is therefore more likely not to need to hire a skilled plumber when installing a toilet. - Rubber is the preferred material for the gasket, but other materials may also suffice if they have appropriate sealing and compression characteristics. Also, while three connectors have been illus- strated for use with the gasket member, any number of such connectors could be utilized, depending upon the number of threaded fastening elements required. Further, the washer ends of the connectors have been illustrated as being frusto-conical in configuration. Many other enlargements forming the washer heads (e.g., spheres) could as effectively be utilized to provide the expansion fit. Also, while a integral unit made of a single material is shown, separately made parts could be assembled into one piece unit, yet follow the present design.
- Thus, while a preferred embodiment has been described above, it is readily apparent to those skilled in the art that a number of modifications and changes may be made without departing from the spirit and scope of the invention.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68971085A | 1985-01-08 | 1985-01-08 | |
US689710 | 1985-01-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0187657A2 true EP0187657A2 (en) | 1986-07-16 |
EP0187657A3 EP0187657A3 (en) | 1987-09-02 |
EP0187657B1 EP0187657B1 (en) | 1989-08-16 |
Family
ID=24769609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86100129A Expired EP0187657B1 (en) | 1985-01-08 | 1986-01-07 | Toilet tank gasket |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0187657B1 (en) |
JP (1) | JPS61179929A (en) |
KR (1) | KR950002247B1 (en) |
CA (1) | CA1263501A (en) |
DE (1) | DE3665085D1 (en) |
ES (1) | ES8702613A1 (en) |
MX (1) | MX165499B (en) |
PH (1) | PH22699A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008036184A1 (en) | 2006-09-20 | 2008-03-27 | Kohler Co. | Toilet tank connector assembly |
EP2128351A2 (en) | 2008-05-30 | 2009-12-02 | Toto Ltd. | Holding tank and flush toilet provided therewith |
EP3486386A1 (en) * | 2017-11-16 | 2019-05-22 | Roca Sanitario, S. A. | Toilet, and toilet and discharge cistern assembly |
FR3091885A1 (en) * | 2019-01-18 | 2020-07-24 | Wirquin Plastiques | Toilet set comprising an annular seal interposed between the tank and the bowl |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924533A (en) * | 1988-11-14 | 1990-05-15 | American Standard Inc. | Coupling means for toilet tank and bowl assembly |
JPH0612571U (en) * | 1992-07-17 | 1994-02-18 | 株式会社イナックス | Tightly packed packing for mounting the cleaning tank |
AU2015314737A1 (en) * | 2014-09-12 | 2017-03-23 | As Ip Holdco, Llc | Primed jet toilet |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2520575A (en) * | 1948-11-04 | 1950-08-29 | Mansfield Sanitary Pottery Inc | Flush tank and bowl combination |
US2743460A (en) * | 1953-08-03 | 1956-05-01 | Leonard W Youngstrom | Adjustable connector for tank and bowl of a close coupled water-closet combination |
US3448466A (en) * | 1967-12-22 | 1969-06-10 | American Standard Inc | Coupling bolt with plastic head |
DE2252965A1 (en) * | 1971-11-05 | 1973-05-10 | Ifoeverken Ab | DEVICE FOR CONNECTING THE CUSHIONBOX TO THE CLOSET BASIN |
-
1986
- 1986-01-07 EP EP86100129A patent/EP0187657B1/en not_active Expired
- 1986-01-07 DE DE8686100129T patent/DE3665085D1/en not_active Expired
- 1986-01-07 PH PH33264A patent/PH22699A/en unknown
- 1986-01-07 CA CA000499106A patent/CA1263501A/en not_active Expired
- 1986-01-07 ES ES550706A patent/ES8702613A1/en not_active Expired
- 1986-01-08 MX MX001180A patent/MX165499B/en unknown
- 1986-01-08 KR KR1019860000042A patent/KR950002247B1/en not_active IP Right Cessation
- 1986-01-08 JP JP61001956A patent/JPS61179929A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2520575A (en) * | 1948-11-04 | 1950-08-29 | Mansfield Sanitary Pottery Inc | Flush tank and bowl combination |
US2743460A (en) * | 1953-08-03 | 1956-05-01 | Leonard W Youngstrom | Adjustable connector for tank and bowl of a close coupled water-closet combination |
US3448466A (en) * | 1967-12-22 | 1969-06-10 | American Standard Inc | Coupling bolt with plastic head |
DE2252965A1 (en) * | 1971-11-05 | 1973-05-10 | Ifoeverken Ab | DEVICE FOR CONNECTING THE CUSHIONBOX TO THE CLOSET BASIN |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008036184A1 (en) | 2006-09-20 | 2008-03-27 | Kohler Co. | Toilet tank connector assembly |
JP2010504449A (en) * | 2006-09-20 | 2010-02-12 | コーラー、カンパニー | Toilet tank connector assembly |
US7913328B2 (en) | 2006-09-20 | 2011-03-29 | Kohler Co. | Toilet tank connector assembly |
EP2128351A2 (en) | 2008-05-30 | 2009-12-02 | Toto Ltd. | Holding tank and flush toilet provided therewith |
EP2128351A3 (en) * | 2008-05-30 | 2012-10-17 | Toto Ltd. | Holding tank and flush toilet provided therewith |
EP3486386A1 (en) * | 2017-11-16 | 2019-05-22 | Roca Sanitario, S. A. | Toilet, and toilet and discharge cistern assembly |
FR3091885A1 (en) * | 2019-01-18 | 2020-07-24 | Wirquin Plastiques | Toilet set comprising an annular seal interposed between the tank and the bowl |
Also Published As
Publication number | Publication date |
---|---|
EP0187657B1 (en) | 1989-08-16 |
ES8702613A1 (en) | 1987-01-01 |
KR860005940A (en) | 1986-08-16 |
CA1263501A (en) | 1989-12-05 |
PH22699A (en) | 1988-11-14 |
EP0187657A3 (en) | 1987-09-02 |
ES550706A0 (en) | 1987-01-01 |
KR950002247B1 (en) | 1995-03-15 |
JPH0451614B2 (en) | 1992-08-19 |
MX165499B (en) | 1992-11-16 |
DE3665085D1 (en) | 1989-09-21 |
JPS61179929A (en) | 1986-08-12 |
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